Steel rail welding flaw detection device and steel rail welding detection system

Abstract

The utility model discloses a steel rail welding flaw detection device and a steel rail welding detection system, the steel rail welding flaw detection device is used for detecting the welding quality of a steel rail, the steel rail welding flaw detection device comprises a mounting module and a flaw detection module located below the mounting module, and one side of the mounting module relative to the flaw detection module is used for being mounted to a mounting position; a driving module electrically connected with the flaw detection module is arranged, the flaw detection module comprises a first flaw detection module and a second flaw detection module, a gap is formed between the first flaw detection module and the second flaw detection module to form a flaw detection area, and the first flaw detection module and the second flaw detection module are both electrically connected with the driving module; and the driving modules can synchronously move along opposite directions under the driving of the driving modules. Compared with the prior art, the steel rail flaw detection device can detect flaws on the two sides of a steel rail, so that the precision of flaw detection results is ensured, and meanwhile, the automation of flaw detection can be realized.

Description

Technical Field

[0001] This utility model relates to a rail welding flaw detection device and rail welding inspection, belonging to the field of mechanical inspection. Background Technology

[0002] Steel rails are the main component of railway tracks. Their primary function is to guide the wheels of locomotives and rolling stock, bear the enormous pressure from the wheels, and transmit this pressure to the sleepers. Steel rails must provide a continuous, smooth, and low-resistance rolling surface for the wheels; therefore, the rail's flatness must be shaped. This makes post-weld inspection of the rails particularly important. Current flaw detection methods mostly involve inspectors holding handheld scanning frames, requiring workers to constantly adjust the probe position based on the steel plate surface condition to ensure good coupling between the probe and the workpiece. This results in low inspection accuracy due to human error.

[0003] In view of this, it is indeed necessary to improve the existing rail welding flaw detection equipment to solve the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a rail welding flaw detection device, which can perform flaw detection on both sides of the rail, ensuring the accuracy of the flaw detection results, and also realizing the automation of flaw detection.

[0005] The technical solution of this utility model is:

[0006] A rail welding flaw detection device is disclosed for detecting the welding quality of the rail. It includes an installation module and a flaw detection module located below the installation module. One side of the installation module, opposite to the flaw detection module, is used for mounting to a mounting position and is equipped with a drive module electrically connected to the flaw detection module. The flaw detection module includes a first flaw detection module and a second flaw detection module, with a gap between the first and second flaw detection modules to form a flaw detection area. Both the first and second flaw detection modules are electrically connected to the drive module and can move synchronously in opposite directions under the drive of the drive module.

[0007] As a further improvement of this utility model, the flaw detection area is used to place the rail, and the extension direction of the rail is perpendicular to the vertical direction between the first flaw detection module and the second flaw detection module. The first flaw detection module and the second flaw detection module are configured to move closer to or further away from each other along the extension direction of the rail under the drive of the drive module.

[0008] As a further improvement of this utility model, the vertical direction between the first flaw detection module and the second flaw detection module is defined as the flaw detection direction, and the first flaw detection module and the second flaw detection module are configured to be able to move closer to or further away from each other along the flaw detection direction.

[0009] As a further improvement of this utility model, the first flaw detection module and the second flaw detection module are each provided with an independent cylinder module. The cylinder module is configured to be activated to push the corresponding flaw detection module to move along the flaw detection direction toward another flaw detection module.

[0010] As a further improvement of this utility model, as the first flaw detection module and the second flaw detection module approach each other along the flaw detection direction, the width of the flaw detection area gradually decreases, and the width is always greater than the thickness of the rail.

[0011] As a further improvement of this utility model, at the same time, only one of the first flaw detection module and the second flaw detection module can emit flaw detection sound waves, and the driving module can selectively activate any one of the flaw detection modules to emit flaw detection sound waves.

[0012] As a further improvement of this utility model, the driving module is a driving motor, and the forward and reverse rotation of the driving motor are respectively used to excite one of the first flaw detection module and the second flaw detection module to emit flaw detection sound waves.

[0013] This utility model also provides a rail welding inspection system, which can perform flaw detection on both sides of the rail, ensuring the accuracy of the flaw detection results, and also realizing the automation of flaw detection.

[0014] The technical solution of this utility model is:

[0015] A rail welding inspection system, characterized in that it includes the aforementioned rail welding flaw detection device, the rail welding inspection system includes a truss, and a positioning module located inside the truss for fixing the rail, the rail welding flaw detection device is also located inside the truss and corresponds to the positioning module, so that the rail fixed on the positioning module at least partially enters the flaw detection area.

[0016] As a further improvement of this utility model, the installation module is movably connected to the truss, and the truss is provided with a sliding area directly above the positioning module. The installation module is configured to slide along the sliding area to drive the flaw detection module to move along the extension direction of the rail and adjust the position of the flaw detection area corresponding to the rail.

[0017] As a further improvement of this utility model, the positioning module includes at least two positioning platforms spaced apart. Each positioning platform is provided with a pulley and a positioning element disposed near the pulley. The positioning element includes a placement groove for placing the rail and clamping elements located on opposite sides of the placement groove. The two clamping elements can be activated to move closer to each other to fix the rail in the placement groove.

[0018] The beneficial technical effects of this utility model are as follows: The rail welding flaw detection device of this utility model sets a flaw detection module below the installation module, and sets a gap between the first flaw detection module and the second flaw detection module to form a flaw detection area. The first flaw detection module and the second flaw detection module are electrically connected to the drive module located on the side of the installation module opposite to the flaw detection module, and can move synchronously in opposite directions under the drive of the drive module to perform flaw detection on both sides of the rail, ensuring the precision of the flaw detection results, and also realizing the automation of flaw detection. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a rail welding inspection system conforming to a preferred embodiment of the present utility model.

[0020] Figure 2 yes Figure 1 A schematic diagram of the structure of the rail welding flaw detection device.

[0021] Figure 3 This is the initial layout diagram of the first and second flaw detection modules.

[0022] Figure 4 This is a layout diagram of the first and second flaw detection modules after the first round of flaw detection.

[0023] Figure 5 yes Figure 1 A schematic diagram of the positioning module. Detailed Implementation

[0024] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0025] Please see Figures 1 to 5As shown, this utility model discloses a rail welding inspection system 100, including a truss 1 and a positioning module 2 located inside the truss 1. A straightness detection device 3 and a rail welding flaw detection device 4 are respectively provided on opposite sides of the positioning module 2. The positioning module 2 is used to fix the rail 200, and then the straightness detection device 3 is used to detect the straightness of the rail 200, and the rail welding flaw detection device 4 is used to perform flaw detection on the rail 200 to confirm the welding quality of the rail 200.

[0026] In this embodiment, the flatness detection device 3 is existing technology and can be replaced by a conventional flatness detection device 3, which will not be elaborated further.

[0027] The rail welding flaw detection device 4 is used to detect the welding quality of the rail 200, and includes an installation module 41 and a flaw detection module 42 located below the installation module 41. The installation module 41 is movably connected to the truss 1. The truss 1 has a sliding area 11 directly above the positioning module 2. The installation module 41 is configured to slide along the sliding area 11 to drive the flaw detection module 42 to move along the extension direction of the rail 200.

[0028] The side of the mounting module 41 opposite to the flaw detection module 42 is used to install it to the mounting position, i.e., the truss 1. The flaw detection module 42 includes a first flaw detection module 421 and a second flaw detection module 422, and a gap is provided between the first flaw detection module 421 and the second flaw detection module 422 to form a flaw detection area 420.

[0029] The mounting module 41 is further provided with a drive module 43 electrically connected to the flaw detection module 42 on the side opposite to the flaw detection module 42. The first flaw detection module 421 and the second flaw detection module 422 are both electrically connected to the drive module 43 and can move synchronously in opposite directions under the drive of the drive module 43.

[0030] Preferably, the flaw detection area 420 is used to place the rail 200, and the extension direction of the rail 200 is perpendicular to the vertical direction between the first flaw detection module 421 and the second flaw detection module 422. The first flaw detection module 421 and the second flaw detection module 422 are configured to move closer to or further away from each other along the extension direction of the rail 200 under the drive of the drive module 43. That is, the first flaw detection module 421 and the second flaw detection module 422 sandwich the rail 200 in the middle and can move in the opposite direction of the rail 200.

[0031] The rail welding flaw detection device 4 corresponds to the positioning module 2, such that the rail 200 fixed on the positioning module 2 at least partially enters the flaw detection area 420. That is, the flaw detection area 420 and the fixed rail 200 are on the same straight line. When the flaw detection module 42 moves along the extension direction of the rail 200, the position of the flaw detection area 420 corresponding to the rail 200 is adjusted. This is to move the rail welding flaw detection device 4 to the welding area of ​​the rail 200 for flaw detection in that area.

[0032] In this embodiment, both the first flaw detection module 421 and the second flaw detection module 422 are equipped with six probes. The first flaw detection module 421 includes probes A1, B1, A5, B5, A3, and B3, and the second flaw detection module 422 includes probes A2, B2, A4, B4, A6, and B6. The first flaw detection module 421 and the second flaw detection module 422 are arranged in a roughly centrally symmetrical manner. The first flaw detection module 421 is used to detect the right side of the rail 200, and the second flaw detection module 422 is used to detect the left side of the rail 200. Therefore, with the center line X as the dividing line, the first flaw detection module 421 and the second flaw detection module 422 are located on both sides of the center line X, and two probes are arranged on the same horizontal line on each side, with the probes on each horizontal line being staggered from each other. In this embodiment, probes A3, A4, B3 and B4 are located on the top of the rail 200 because, in order to ensure the detection of the top of the rail 200, both the first flaw detection module 421 and the second flaw detection module 422 need to set probes on the top of the rail 200.

[0033] This is because, at any given time, only one of the first flaw detection module 421 and the second flaw detection module 422 can emit flaw detection sound waves. The drive module 43 can selectively activate either flaw detection module 42 to emit flaw detection sound waves. That is, in this embodiment, first, by activating either the first flaw detection module 421 or the second flaw detection module 422 to emit flaw detection sound waves for flaw detection on one side of the rail 200, then by activating the other flaw detection module 421 or the other flaw detection module 422 to emit flaw detection sound waves for flaw detection on the other side of the rail 200. In this way, by detecting both sides of the rail 200, the accuracy of flaw detection can be guaranteed. Preferably, the drive module 43 is a drive motor, and the forward and reverse rotation of the drive motor are used to excite one of the first flaw detection module 421 or the second flaw detection module 422 to emit flaw detection sound waves. Of course, in other embodiments, the emission of flaw detection sound waves by the first flaw detection module 421 and the second flaw detection module 422 can also be controlled by signal control or other means, and there is no limitation on this.

[0034] Please see Figure 3 and Figure 4 As shown. During the first round of flaw detection, the drive module 43 drives the first flaw detection module 421 to emit flaw detection acoustic waves to perform flaw detection on the right side of the rail 200. The first flaw detection module 421 and the second flaw detection module 422 move relative to each other as shown. Figure 4 As shown. Then, a second round of inspection is performed on the rail 200. The drive module 43 drives the second flaw detection module 422 to emit flaw detection acoustic waves to perform flaw detection on the left side of the rail 200. The first flaw detection module 421 and the second flaw detection module 422 move relative to each other until... Figure 3 As shown.

[0035] Preferably, the two probes on the same horizontal line emit the flaw detection sound waves at an angle that is inclined, that is, both probes emit the waves at an angle towards their center, so as to focus on the rail 200 and perform the inspection. Preferably, the tilt angle is 45º, 60º, etc.

[0036] Furthermore, the flaw detection module 42 also includes a third flaw detection module independent of the first flaw detection module 421 and the second flaw detection module 422. This third flaw detection module uses linear probes, rather than the tilting probes used in the first and second flaw detection modules 421 and 422. In this embodiment, the third flaw detection module contains two linear probes, meaning the flaw detection module 42 consists of two linear probes and twelve tilting probes. This ensures that all positions of the rail 200 are detected as accurately as possible, guaranteeing the accuracy of the detection.

[0037] The vertical direction between the first flaw detection module 421 and the second flaw detection module 422 is defined as the flaw detection direction. The first flaw detection module 421 and the second flaw detection module 422 are configured to move closer to or further away from each other along the flaw detection direction. That is, during flaw detection, the first flaw detection module 421 and the second flaw detection module 422 need to be sufficiently close to the rail 200 to ensure that the flaw detection acoustic waves can reach the rail 200. As the first flaw detection module 421 and the second flaw detection module 422 move closer to each other along the flaw detection direction, the width of the flaw detection area 420 gradually decreases, and the width is always greater than the thickness of the rail 200. In other words, the first flaw detection module 421 and the second flaw detection module 422 will never come into contact with the rail 200.

[0038] The first flaw detection module 421 and the second flaw detection module 422 are each equipped with an independent cylinder module 44. The cylinder module 44 is configured to activate and push the corresponding flaw detection module 42 to move towards the other flaw detection module 42 along the flaw detection direction. Therefore, in this embodiment, the mutual approach and distance between the first flaw detection module 421 and the second flaw detection module 422 are both driven by the cylinder module 44.

[0039] The positioning module 2 includes at least two positioning platforms 21 spaced apart. Each positioning platform 21 is provided with a pulley 211 and a positioning member 212 located near the pulley 211. The positioning member 212 includes a placement groove 210 for placing the rail 200 and clamping members 213 located on opposite sides of the placement groove 210. The two clamping members 213 can be activated to move closer to each other to fix the rail 200 in the placement groove 210.

[0040] Between the two positioning platforms 21, the positioning module is also provided with an independent pulley platform 22. The pulley platform 22 cooperates with the pulleys 211 to transport the rail 200 after the rail 200 has been inspected.

[0041] The bottom of the positioning member 212 is also provided with a lifting device 214, which is used to lift the positioning member 212 so that the lower surface of the placement groove 210 on the positioning member 212 is higher than the upper surface of the pulley 211.

[0042] In use, the positioning member 212 is first lifted by the lifting device 214, and then the rail 200 is transported into the placement slot 210 of the positioning member 212. Then, the clamping member 213 is driven to clamp and fix the rail 200. After that, straightness detection and flaw detection are performed in sequence. After the detection is completed, the clamping member 213 is driven to release the fixation of the rail 200, and then the lifting device 214 is driven to reset, so that the rail 200 abuts against the pulley 211 and the pulley table 22. Then, it can be transported away from the positioning module 2 by the pulley 211 and the pulley table 22.

[0043] In summary, the rail welding flaw detection device 4 and rail welding flaw detection device 100 of this utility model have flaw detection modules 42 connected below the mounting module 41, and a gap is set between the first flaw detection module 421 and the second flaw detection module 422 of the flaw detection module 42 to form a flaw detection area 420. The first flaw detection module 421 and the second flaw detection module 422 are both electrically connected to the drive module 43 located on one side of the mounting module 41 relative to the flaw detection module 42, and can move synchronously in opposite directions under the drive of the drive module 43 to perform flaw detection on both sides of the rail 200, ensuring the precision of the flaw detection results, and also realizing the automation of flaw detection.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A rail welding flaw detection device for detecting the welding quality of the rail, characterized in that, The device includes an installation module and a flaw detection module located below the installation module. One side of the installation module, opposite to the flaw detection module, is used for mounting to a mounting position and is provided with a drive module electrically connected to the flaw detection module. The flaw detection module includes a first flaw detection module and a second flaw detection module, and a gap is provided between the first flaw detection module and the second flaw detection module to form a flaw detection area. Both the first flaw detection module and the second flaw detection module are electrically connected to the drive module and can move synchronously in opposite directions under the drive of the drive module.

2. The rail welding flaw detection device according to claim 1, characterized in that, The flaw detection area is used to place the rail, and the extension direction of the rail is perpendicular to the vertical direction between the first flaw detection module and the second flaw detection module. The first flaw detection module and the second flaw detection module are configured to move closer to or further away from each other along the extension direction of the rail under the drive of the drive module.

3. The rail welding flaw detection device according to claim 2, characterized in that, The vertical direction between the first flaw detection module and the second flaw detection module is defined as the flaw detection direction, and the first flaw detection module and the second flaw detection module are configured to be able to move closer to or further away from each other along the flaw detection direction.

4. The rail welding flaw detection device according to claim 3, characterized in that, The first flaw detection module and the second flaw detection module are each equipped with an independent cylinder module. The cylinder module is configured to be activated to push the corresponding flaw detection module to move along the flaw detection direction toward another flaw detection module.

5. The rail welding flaw detection device according to claim 3, characterized in that, As the first flaw detection module and the second flaw detection module approach each other along the flaw detection direction, the width of the flaw detection area gradually decreases, and the width is always greater than the thickness of the rail.

6. The rail welding flaw detection device according to claim 1, characterized in that, At any given time, only one of the first and second flaw detection modules can emit flaw detection sound waves, and the driving module can selectively activate any one of the flaw detection modules to emit flaw detection sound waves.

7. The rail welding flaw detection device according to claim 6, characterized in that, The drive module is a drive motor, and the forward and reverse rotation of the drive motor are used to excite one of the first flaw detection module and the second flaw detection module to emit flaw detection sound waves.

8. A rail welding inspection system, characterized in that, The rail welding flaw detection device includes any one of claims 1-7, the rail welding detection system including a truss and a positioning module located inside the truss for fixing the rail, the rail welding flaw detection device also being located inside the truss and corresponding to the positioning module, such that the rail fixed on the positioning module at least partially enters the flaw detection area.

9. The rail welding inspection system according to claim 8, characterized in that, The installation module is movably connected to the truss. The truss has a sliding area directly above the positioning module. The installation module is configured to slide along the sliding area to drive the flaw detection module to move along the extension direction of the rail and adjust the position of the flaw detection area corresponding to the rail.

10. The rail welding inspection system according to claim 8, characterized in that, The positioning module includes at least two positioning platforms spaced apart. Each positioning platform is provided with a pulley and a positioning element located near the pulley. The positioning element includes a placement groove for placing the rail and clamping elements located on opposite sides of the placement groove. The two clamping elements can be activated to move closer to each other to fix the rail in the placement groove.

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